Clarkia williamsonii is a species of flowering plant endemic to California, where it is known from the forests and woodlands of the northern and central...

Clarkia is a genus within the flowering plant family Onagraceae. Over 40 species are currently classified in Clarkia; almost all are native to western...

similar to C. williamsonii. The third 1953 paper discussed the relationship between changes in the basic chromosome number of Clarkia with Californian...